where to create the object

[Oivvio Polite]

hi everyone.
this is only my first week with python and oo. but i've gone through the
tutorial, the library reference and kind of browsed the faq so i think
that i'm entitled to start throwing in stupid questions.

here goes the first one:

the method  result of class foo generates a the result object bar.
the bar object could either created in the result method and returned to
the calling program.
or it could be created in the calling program, supplied as an argument
to result that results just fills up with the right values.

my gut feeling is that the first choice is a better design but that the
second choice is less costly in terms of both memory and time.

what are your any rules of thumb?

oivvio

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